Boat hull



FIG. 1 is a front perspective view of a boat hull showing my new design;

FIG. 2 is a rear perspective view thereof;

FIG. 3 is a reduced top plan view thereof;

FIG. 4 is a front and bottom perspective view thereof; and

FIG. 5 is a front and rear perspective view thereof. 

The ornamental design for a boat hull, as shown and described. 